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scrolling text: prevent flickering

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always redraw background for each frame
This commit is contained in:
Frank
2024-10-23 14:26:05 +02:00
parent 922c5e74df
commit dbd8bef669
1 changed files with 9 additions and 3 deletions
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12
wled00/FX.cpp
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@@ -6594,14 +6594,20 @@ uint16_t mode_2Dscrollingtext(void) {
if (SEGENV.step < strip.now) { if (SEGENV.step < strip.now) {
if ((numberOfLetters * letterWidth) > cols) ++SEGENV.aux0 %= (numberOfLetters * letterWidth) + cols; // offset if ((numberOfLetters * letterWidth) > cols) ++SEGENV.aux0 %= (numberOfLetters * letterWidth) + cols; // offset
else SEGENV.aux0 = (cols + (numberOfLetters * letterWidth))/2; else SEGENV.aux0 = (cols + (numberOfLetters * letterWidth))/2;
++SEGENV.aux1 &= 0xFF; // color shift SEGENV.aux1 = (SEGENV.aux1 + 1) & 0xFF; // color shift // WLEDMM changed to prevent overflow
SEGENV.step = strip.now + map(SEGMENT.speed, 0, 255, 10*FRAMETIME_FIXED, 2*FRAMETIME_FIXED); SEGENV.step = strip.now + map2(SEGMENT.speed, 0, 255, 10*FRAMETIME_FIXED, 2*FRAMETIME_FIXED);
if (!SEGMENT.check2) { if (!SEGMENT.check2) {
for (int y = 0; y < rows; y++) for (int x = 0; x < cols; x++ ) for (int y = 0; y < rows; y++) for (int x = 0; x < cols; x++ )
SEGMENT.blendPixelColorXY(x, y, SEGCOLOR(1), 255 - (SEGMENT.custom1>>1)); SEGMENT.blendPixelColorXY(x, y, SEGCOLOR(1), 255 - (SEGMENT.custom1>>1));
} }
} else { // WLEDMM "repaint" segment to prevent flickering
if (!SEGMENT.check2) {
for (int y = 0; y < rows; y++) for (int x = 0; x < cols; x++)
SEGMENT.blendPixelColorXY(x, y, SEGCOLOR(1), 255 - SEGMENT.custom1); // slightly reduced "blending" to keep trails visible
}
} }
bool drawShadow = (SEGMENT.check2) && (SEGMENT.custom1 == 0);
bool drawShadow = (SEGMENT.check2);
for (int i = 0; i < numberOfLetters; i++) { for (int i = 0; i < numberOfLetters; i++) {
if (int(cols) - int(SEGENV.aux0) + letterWidth*(i+1) < 0) continue; // don't draw characters off-screen if (int(cols) - int(SEGENV.aux0) + letterWidth*(i+1) < 0) continue; // don't draw characters off-screen
uint32_t col1 = SEGMENT.color_from_palette(SEGENV.aux1, false, PALETTE_SOLID_WRAP, 0); uint32_t col1 = SEGMENT.color_from_palette(SEGENV.aux1, false, PALETTE_SOLID_WRAP, 0);